scholarly journals Substantiation of regime parameters of vibrating conveyor infrared dryers

10.5219/1184 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 751-758
Author(s):  
Igor Palamarchuk ◽  
Mikhailo Mushtruk ◽  
Volodymyr Vasyliv ◽  
Marija Zheplinska
Keyword(s):  
Current Mode ◽  
Operating Mode ◽  
Dimension Theory ◽  
Power Functions ◽  
Criterial Equation ◽  
Wave Transport ◽  
Design Structure ◽  
Factors Of Influence ◽  
Main Factors ◽  
Vibration Wave

The analysis of constructive-technological schemes of vibrating conveyor machines for heat-exchange processing of bulk technological masses in the current mode is carried out, which allowed to substantiate the effectiveness of using a new modification of infrared dryers of vibration-wave execution with a flexible transporting body. For this scheme, a vibrating system is developed which mathematical modelling allowed to determine and substantiate the main parameters of the operating mode of the drive mechanism of the projected device. The experiments, using the developed research model, confirm and refine the results of theoretical analysis, energy efficiency and comparatively low metal consumption of the design structure. The difficulty of working with such a large number of factors led to the application of the second similarity theorem and the introduction of a mathematical model of the criteria of Stanton, Froude, Burdo, whose magnitudes are reflected through the main factors of influence and were found experimentally. After using the "dimension theory" and graph-analytic analysis of power functions, a criterial equation of the investigated process was obtained. This allows recommending the regime parameters and the design series of projected thermo-radiation dryers with vibration-wave transport of products when varying the main factors of influence.

scholarly journals Air pollution: smog and fog in the large cities of Ukraine.

2017 ◽  
Vol 1 (1) ◽  
pp. 1-12
Author(s):  
Rostyslav Sipakov
Keyword(s):  
Mathematical Model ◽  
Air Pollution ◽  
Chemical Kinetics ◽  
Gaseous Pollutants ◽  
Scattering Process ◽  
Large Cities ◽  
Sample Contamination ◽  
Factors Of Influence ◽  
Main Factors ◽  
Harmful Substances

The main factors of air pollution in large cities in Ukraine are described in the article and the main factors of smog have been analyzed on the example of Kyiv in the period January - February 2017. For the analysis of sample contamination points in Kyiv, we used a mathematical model of the spread of solid and gaseous pollutants with the main factors of influence on the scattering process of contaminants in the air: heat, turbulence, chemical kinetics, etc. As a result of the simulation it was confirmed that the smog in Kyiv and surroundings was formed as a result of anticyclone and air pollution by harmful substances, soot and etc.

scholarly journals The interurban DRAG-Spain model: The main factors of influence on road accidents in Spain

2013 ◽  
Vol 37 (1) ◽  
pp. 57-65 ◽  
Author(s):  
Francisco Aparicio Izquierdo ◽  
Blanca Arenas Ramírez ◽  
Eva Bernardos Rodríguez
Keyword(s):  
Road Accidents ◽  
Factors Of Influence ◽  
Main Factors

A Research on the Stresses Distributed over Pipe Insulating Joints

2013 ◽  
Vol 753-755 ◽  
pp. 1530-1533
Author(s):  
Kang Yong ◽  
Nai Qin Chen
Keyword(s):  
3D Modeling ◽  
Computer Software ◽  
Structure Optimization ◽  
Mechanical Analysis ◽  
Structure Design ◽  
Analysis Software ◽  
Element Analysis ◽  
Joint Structure ◽  
Design Structure ◽  
Main Factors

By using CAD 3D modeling and structural statics of finite element analysis software ANSYS, the stress distribution of the insulating joint under different loads is obtained. The main factors are suggested, which influence the effects of the insulating joint, being base on the mechanical analysis of using computer software, and the ranges of concentrated stress are pointed out. These studies will help the insulating joint structure design, structure optimization and better applications.

scholarly journals Robust Switching Control Strategy for a Transmission System with Unknown Backlash

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Qiang Ling ◽  
Zhe Yan ◽  
Honghai Shen ◽  
Jiquan Li ◽  
Yongyang Wang
Keyword(s):  
Input Signal ◽  
Control Strategy ◽  
Current Mode ◽  
Operating Mode ◽  
Switching Control ◽  
Transmission System ◽  
Operating Modes ◽  
Supervisory Controller ◽  
Switching Control Strategy ◽  
Backlash Nonlinearity

This paper proposes a robust switching control strategy for a transmission system with unknown backlash. Firstly, the adverse effects of backlash nonlinearity in the transmission system are analyzed. Then the backlash model and different operating modes of the transmission system with backlash are investigated. For each operating mode, an individual controller is designed to make the system robust against the unknown backlash and various frequencies of the input signal. Moreover, a supervisory controller is proposed to estimate the current mode of the transmission system and coordinate the controller switching between different modes. Simulations are done to verify that our switching control strategy can efficiently reduce the oscillation caused by backlash and is quite robust against the variation of the frequency of the input signal.

scholarly journals METHODOLOGICAL APPROACH TO DETERMINING THE MAIN FACTORS FOR THE DEVELOPMENT OF CREATIVE THINKING IN STUDENTS OF CREATIVE PROFESSIONS

2021 ◽  
Vol 14 (2) ◽  
pp. 391-404
Author(s):  
Myroslav Kryshtanovych ◽  
Svitlana Kryshtanovych ◽  
Liudmyla Stepanenko ◽  
Yuliіa Brodiuk ◽  
Alina Fast
Keyword(s):  
Historical Development ◽  
Creative Thinking ◽  
Methodological Approach ◽  
Educational Institutions ◽  
Key Factors ◽  
Factors Influencing ◽  
Expert Analysis ◽  
The Subject ◽  
Factors Of Influence ◽  
Main Factors

The phenomenon of a person’s creative thinking, as well as the mechanisms of its development,are in the problematic field of research of numerous scientists for many centuries. The relevance of these problems was reinforced in many respects by the desire of a person to understand his capabilities, to use them in order to create a comfortable environment around him. Interest in this problem at this stage of socio-historical development has its own special features.The questions that are raised in the study are what factors have the most significant influence on the development of creative thinking in students of creative professions. The main purpose of the article is to determine and compile the key factors for the development of creative thinking in students of creative professions as the main guarantee of their success. To do this, we have applied the methodology of the graph connections between the main factors, which will allow us to form a methodological approach to the hierarchical ordering of the most important factors in the development of creative thinking in students of creative professions as the main guarantee of their success. The subject of the research is the factors of influence on the creative thinking of students of creative specialties. The results of the study led to the formation of the key factors influencing the development of creative thinking among students of creative professions through expert analysis and a survey of specialists in this field and literature. The practical value of the study is to determine the key factors of influence on the development of creative thinking in students and the possibility of using the proposed methodological approach, in particular. The study has limitations and they consist because the process of determining the key factors for the development of creative thinking in students of creative professions took place only considering the specifics of the activities of educational institutions in Ukraine.

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